Fire Rated Roofing Systems

The prevent line of polyester reinforced or composite fire rated cap sheets provide an extra protective coating and line of defense to iko s premium asphalt based roofing systems.

Fire rated roofing systems.

Fire ratings for roofs are classified as either class a class b class c or are unrated if a roof covering cannot meet the requirements for any of these classifications. The different roofing materials that are available for installation on your home are all evaluated for their fire resistant capabilities. Class a class b class c or unrated. Building code fire resistance requirements building codes establish fire resistance requirements for roofs based on the type of construction e g concrete steel wood for the building.

Since 1980 firestone roofing systems have been installed on hundreds of thousands of roofs worldwide. Iko fire rated roofing systems include those designed to handle extreme temperatures and to mitigate fire. Astm e108 defines fire test methods for roof coverings. Our roof systems are rated by code for external fire resistance under deck exposure and time temperature resistance.

How are roofs rated. Roofing systems must meet or exceed building codes and insurance requirements. Firestone building products is a leading manufacturer of high performing roofing systems for commercial industrial and residential roofing applications. Class a fire rated tpo membranes and epdm can achieve underwriters laboratories ul class a fire resistance listings by adding fire retardant chemicals during the manufacturing process.

The rating scale is relatively simple and is rated from a to c. To learn more about our roofing systems click on one of the product boxes below. Tested roof systems are fire classified class a b or c where the most fire resistant roof assemblies are class a and class c is least resistant. Reflective or retentive tpo is generally white and highly reflective.

Fire ratings may pertain to resistance to fire from above the roof system the familiar class a b or c ratings or fire exposure from the building interior the underside of the roof deck. One goal of this column will be to increase your understanding of each of these ratings and what the rating does and does not do for your peace of mind. The highest rating meaning the most fire resistant is classified as class a and is able to withstand severe fire exposure. External fire exposure class a b or c.

A class a roof is ideal for fire protection and may be required by your building codes depending on your place of residence. These tests may be conducted at ul inc fm global or any other certified testing laboratory. Class a is the highest rating offering the highest resistance to fire and unrated is the worst.